54412139 has 2 divisors, whose sum is σ = 54412140. Its totient is φ = 54412138.

The previous prime is 54412109. The next prime is 54412147. The reversal of 54412139 is 93121445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54412139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54412109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27206069 + 27206070.

It is an arithmetic number, because the mean of its divisors is an integer number (27206070).

Almost surely, 2^54412139 is an apocalyptic number.

54412139 is a deficient number, since it is larger than the sum of its proper divisors (1).

54412139 is an equidigital number, since it uses as much as digits as its factorization.

54412139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 54412139 is about 7376.4584320662. The cubic root of 54412139 is about 378.9354763301.

It can be divided in two parts, 5 and 4412139, that added together give a palindrome (4412144).

The spelling of 54412139 in words is "fifty-four million, four hundred twelve thousand, one hundred thirty-nine".